Window-lock.



No. 719,593. PATENTED FEB. a, 1903 H. HUBSGH. wmnow LOOK.

APPLICATION FILED JULY 1, 1902.

H0 MODEL.

UNlTED STATES PATENT OFFICE.

HERMANN HUBSCI-I, OF BROOKLYN, NEW YORK.

WINDOW-LOCK.

SPECIFICATION forming part of Letters Patent No. 719,593, dated February3, 1903.

Application filed July 1, 1902- Serial No. 113,913- (No model.)

To all whom it may concern:

Be it known that I, HERMANN HUBSCH, a citizen of the United States,residing at Brooklyn, in the county of Kings and State of New York, haveinvented certain new and useful Improvements in Window-Locks, of whichthe following is a specification.

This invention relates to window-locks, and has for its object toprovide a device of the class described which will possess points ofadvantage in simplicity, convenience, inexpensiveness, effectiveness,and general efficiency.

Another object of the invention is to provide a device in which thelocking means are normally entirely withdrawn from contact with thewindow-sash and there is required a positive operation to bring thelocking device into action.

In the drawings, Figure l is a side elevation of a window-lock embodyingthe invention, showing the adjacent parts of the window frame andsashes. Fig. 2 is a front elevation of such lock. Fig. 3 is a plan viewof the same. Fig. at is a perspective view of a detail thereof.

Corresponding parts in all the figures are denoted by the same referencecharacters.

Referring to the drawings, 1 designates a window-frame; 2, slidingwindow-sashes,both of which may be of the ordinary construction.

My invention consists of a standard provided with means at its base forattaching it to the upper rail of the lower sash of a window and with ahooked upper portion, the front of said standard being inclined from thebase to the recess formed by such hook, and a member adapted normally torest in such hook portion and upon the front of the standard when inoperative position. In the form here shown the base of the standard isprovided with apertures 3 to receive screws at, by means of which it issecured upon the top of the upper rail of the lower sash 2 at one sideof the window-frame 1. The rear surface of the standard 5 issubstantially at right angles to the base and the upper portion curvesfrom the back to the front, while the front is cut away to form a recess6 near the top and is inclined outward from such recess toward the base.

The locking member consists of a spool 7 adapted to roll upon the frontroughened or serrated surface of the standard 5 and is preferablyprovided on its ends with a resilient annular surface, against which thestile of the upper sash bears. Such resilient surface in the form shownconsists of bands of rubber sprung upon the ends of the spool 7.

The operation and advantages of the invention will be readily understoodand appreciated. The standard having been secured upon the upper rail ofthe lower sash, the locking member is rolled upon the inclined surface,and the upper sash bearing against the rubber-covered ends of the spool7 causes the friction to be so great When the sashes are moved inopposite directions as to firmly lock them in a predetermined position.When it is desired to release the sash, it is only necessary to rollthem slightly in the same direction, at the same time rolling the spoolinto the recess, where it remains out of the way until again needed.

I do not desire to be understood as limiting myself to the details ofconstruction and arrangement as herein described and illustrated, as itis manifest that variations and modifications may be made in thefeatures of construction and arrangement in the adaptation of the deviceto various conditions of use without departing from the spirit and scopeof my invention and improvements. I there fore reserve the right to allsuch variation and modification as properly fall Within the scope of myinvention and the terms of the following claim.

Having thus described my invention, I claim and desire to secure byLetters Pat- 61113- A device of the class described, comprising a memberprovided with means of attachment to the upper rail of the lower sashand with a transverse recess in its front portion near the top and withan outward-inclined front portion below such recess, and "a memberprovided with disk-shaped ends and an intermediate grooved portion whichmember normally rests in said recess and, when in operative position,rolls upon such inclined portion and bears against the stile of theupper sash.

In testimony whereof I have signed my name in the presence of thesubscribing witnesses.

HERMAN N I'IUBSCI-I.

lVitnesses:

HARTWELL P. HEATH, JAMES 0. Prime.

IOO

